Structure 151310007205175 · Kendall County, TX

US 87 NB over IH 10

Carries US 87 NB over IH 10, 0.8 Mi N Of FM 1621.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT380 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

380 ft end to end, longest span 130 ft: about 5 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built197155 years old
Length379.9 ft115.8 m
Daily traffic7,113counted 2023
Last inspectedJune 2024every 24 months

Location

StateTexas
CountyKendall
Location0.8 Mi N Of FM 1621
CarriesUS 87 NB
CrossesIH 10
Coordinates29.96076, -98.88870

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length379.9 ft (115.8 m)
Max Span129.9 ft (39.6 m)
Deck Width26.2 ft (8 m)
Deck Area926.4 sq m
Main Spans2
Year Built1971

Traffic

Avg Daily Traffic7,113 (2023)
Truck Traffic11%
Lanes On Bridge1
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number151310007205175

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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